package com.keyue.common.directory;


import com.keyue.common.constant.Constant;

/**
 * @author xms
 */
public class Path {
    /**
     * 获取程序启动路径
     *
     * @param cls,建议直接传 ServiceApplication.class
     * @return 应用启动路径
     */
    public static String getAppPath(Class cls) {
        String path = cls.getResource(Constant.SLASH_MARK_CHARACTER).getPath();
        String os = System.getProperty("os.name").toLowerCase();
        final String OSWINDOW = "windows";
        if (os.indexOf(OSWINDOW) != -1 && path.length() > 1) {
            //windows路径样例: /D:/work/code/shop-services/online-shop-oss/target/classes/
            return path.substring(1);
        }

        //linux 路径样例 file:/opt/target/online-shop-oss-SNAPSHOT.jar!/BOOT-INF/classes!/";
        final String FILE = "file:";
        if (path.indexOf(FILE) != -1) {
            path = path.substring(FILE.length());
        }

        int pos = -1;
        if ((pos = path.indexOf(Constant.EXCLAMATION_MARK_CHARACTER)) != -1) {
            if (-1 != (pos = path.lastIndexOf(Constant.SLASH_MARK_CHARACTER, pos))) {
                path = path.substring(0, pos + 1);
            }
        }

        return path;
    }
}
